Solar Panels in Brisbane:

Solar Panels in Brisbane: Prices, Battery Storage Requirement, ROI

One of the highest rates of any Australian capital city, much over 30% of residences in the Brisbane area have solar panels on their roofs. The real question would arise is Why has solar energy captured the attention of Brisbane locals so much?

The advantages of going solar for Brisbane homes are covered in this blog article (and also touches on battery storage factors for off-grid solar). So let’s deep dive in solar power systems

How much energy will solar panels produce in Brisbane?

NASA’s Solar Dynamics Observatory’s image of the Sun Brisbane receives a lot of sunshine all year long, fitting for the state’s capital. Brisbane receives about 5.2 hours of “peak sun” per square metre daily on average, according to the Bureau of Meteorology.

What amount of solar energy is equivalent to 5.2 peak sun hours? Well usually, The size (or kilowatt capacity) of your solar system is the answer to your thoughts The table below gives a general idea of how much energy various typical household solar system sizes will produce, assuming that they are north-facing and approximately 75% efficient and accordingly are working at their max output.

Energy generation for Solar Panels Brisbane

Solar system size (kilowatts)	Number of Solar Panels	Avg daily system output (kilowatt-hours)	Annual output (kilowatt-hours)
3kW	8 to 10	11.7 kWh	4,271 kWh
4kW	11 to 13	15.6 kWh	5,694 kWh
5kW	14 to 16	19.5 kWh	7,117 kWh
7kW	19 to 22	27.3 kWh	9,965 kWh
10kW	27 to 31	39 kWh	14,235 kWh

How to find the Best or Optimal solar system size for your home ?

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  Kilowatt-hours (kWh), the standard units used in electricity billing, should be indicated as your energy usage when you look at your electricity statement. The number of kWh you use will vary by month and season.
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  Looking at your previous electricity bills should help you estimate the average number of kWh you consume each day. The typical Australian home consumes between 15 and 25 kWh of energy each day.Sizing your system is not an exact science these days because solar is so inexpensive, but knowing this amount will help you make the appropriate decision. Due to the excellent pricing, the most popular solar system size in Australia is actually 6.6kW.
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  Apparently is offers a lower price per kilowatt). If you use significantly more than 25kWh of energy per day, a solar system larger than 6.6kW is probably worth investigating as well.The more solar energy you “self-consume” (i.e. use directly) the better your financial return will be because the price of power in Australia is always higher than the price at which you can sell solar power.
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  A “feed-in tariff” is the term used to describe the price you are paid for any extra solar energy you produce. Currently, in Queensland, your power tariff is determined by your retailer and the plan you are on. To compare offers and change to the best retailer, use our electricity plan comparison tool.
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  Make your own calculations using our Solar System Payback & ROI Estimator tool, which we encourage you to do. You can continue reading to the article’s bottom to see a quick comparison of returns on typical residential solar panel systems in Brisbane.

Savings: Can I get the STC rebate for zone 3 in Brisbane?

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  Through the creation of small-scale technology certificates, the federal government rebate essentially offers upfront reductions on the cost of building a solar PV system (STCs).
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  You do not need to submit a claim for this incentive because the installer will include it in the pricing of your system; all you need to do is compare out-of-pocket solar system costs. The Clean Energy Regulator’s calculator can be used to determine how many certificates your system will produce.
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  The incentive’s real worth varies depending on the location and size of the system, but it often amounts to between 30 and 40 percent of the installation cost. Due in large part to this incentive, Australia now has some of the lowest prices in the world.

How much do solar panels cost in Brisbane?

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  As was already stated, Australian solar system installation costs are among the lowest in the world. We are aware of this since we have been tracking prices with our monthly Solar Choice Price Index for a number of years.
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  We calculate an accurate average cost by averaging the costs of all the installers in our network. You may browse through solar quote data from installers in your region using our free comparison platform.
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  According to data from October 2022, after the STC refund has been taken into account, the typical cost of a 6.6kW solar panel installation in Brisbane is $5,770. As seen in the diagram below, the cost of solar energy has significantly decreased over the past ten years in Brisbane and throughout Australia.

Are solar panels worth it in Brisbane?

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  The quick answer is yes; solar panels can save the average solar panels Brisbane customer up to $3,000 annually with a 3–5 year payback period.
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  The scenario where greater solar panel sizes are matched to larger energy demand is illustrated in the table below using some examples of typical Brisbane households. It should be noted that the table’s calculations mainly rely on the “self-consumption rate,” which predicts the percentage of solar energy that will be used in the home rather than returned to the grid.
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  An appropriate amount of consumption throughout the daytime would be indicated by a rate of 40%.Note that the costs listed here are simply averages.You can browse through solar quotes in Brisbane on our free comparison tool if you want to see specific brands and a list possible extras that may occur for your installation.

Indicative Returns for solar panels Brisbane customers

Year 2022

Solar Panel Size	Average Cost	Average Daily Energy Usage	Self Consumption Rate	Annual Savings	Payback Period
5kW	$4,880	15 kWh	40%	$1000	4.8 Years
6.6kW	$5,200	20 kWh	40%	$1,324	3.9 Years
10kW	$8,490	30 kWh	40%	$1,999	4.2 Years
15kW	$12,735	45 kWh	40%	$2,999	4.2 Years

Assumptions/Limitations

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  Assumes an energy cost of 22 cents per kWh, which is about average for Brisbane.
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  Assumes a 10 cent per kWh solar feed-in tariff
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  The Solar Choice Price Index for March 2022 provides average prices, which also take the STC refund and GST into account.
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  Depending on how you use electricity in your home, your self-consumption rate will change.

How does solar battery storage stack up in Brisbane?

• Solar batteries now have a poorer return on investment than solar panels. This is mostly because solar batteries are more expensive and because there is no federal or state-level incentive for battery storage in Queensland or Australia as a whole.
• In our post titled “Are solar batteries worth it?,” All In One Solar has been analysing and following the economics of residential solar battery storage for more than 5 years.
• In order to calculate the financial return shown in the table below, we consider three common use cases along with usual inputs such as energy prices, feed in tariffs, and battery installation costs:

User Case	Solar and Battery Solution	Total Year 1 Savings	Payback Period Solar & Battery	Payback Period Battery Only
Young Adults / Older Family	5kW of Solar Panels and a 3.5 kWh battery	$1,160	9.1 years	> 20 years
Retirees / Young families	6.6kW of Solar Panels and a 6.5 kWh battery	$1,846	7.7 years	18.9 years
Big Energy User	13 kW of Solar Panels and a 13.5 kWh battery	$3.233	8.1 years	> 20 years